JP2005151528A - 集積回路発振器の周波数安定度を改善する方法と装置 - Google Patents

集積回路発振器の周波数安定度を改善する方法と装置 Download PDF

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Publication number
JP2005151528A
JP2005151528A JP2004249931A JP2004249931A JP2005151528A JP 2005151528 A JP2005151528 A JP 2005151528A JP 2004249931 A JP2004249931 A JP 2004249931A JP 2004249931 A JP2004249931 A JP 2004249931A JP 2005151528 A JP2005151528 A JP 2005151528A
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JP
Japan
Prior art keywords
current
capacitor
bipolar transistor
coupled
voltage
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JP2004249931A
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English (en)
Japanese (ja)
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JP2005151528A5 (https=
Inventor
Giao M Pham
ジアオ・ミン・パム
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Power Integrations Inc
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Power Integrations Inc
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Application filed by Power Integrations Inc filed Critical Power Integrations Inc
Publication of JP2005151528A publication Critical patent/JP2005151528A/ja
Publication of JP2005151528A5 publication Critical patent/JP2005151528A5/ja
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
    • H03K4/501—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator
    • H03K4/502—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator the capacitor being charged from a constant-current source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/01—Details
    • H03K3/011—Modifications of generator to compensate for variations in physical values, e.g. voltage, temperature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
JP2004249931A 2003-11-19 2004-08-30 集積回路発振器の周波数安定度を改善する方法と装置 Pending JP2005151528A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/717,228 US7034625B2 (en) 2003-11-19 2003-11-19 Method and apparatus to improve frequency stability of an integrated circuit oscillator

Publications (2)

Publication Number Publication Date
JP2005151528A true JP2005151528A (ja) 2005-06-09
JP2005151528A5 JP2005151528A5 (https=) 2007-09-06

Family

ID=34435751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004249931A Pending JP2005151528A (ja) 2003-11-19 2004-08-30 集積回路発振器の周波数安定度を改善する方法と装置

Country Status (4)

Country Link
US (3) US7034625B2 (https=)
EP (2) EP1533902B1 (https=)
JP (1) JP2005151528A (https=)
DE (1) DE602004018090D1 (https=)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7034625B2 (en) 2003-11-19 2006-04-25 Power Integrations, Inc. Method and apparatus to improve frequency stability of an integrated circuit oscillator
ATE462248T1 (de) * 2006-09-28 2010-04-15 Nokia Siemens Networks Gmbh Steuerung der überlastdetektion in hsdpa systemen
US7518885B2 (en) * 2006-10-04 2009-04-14 Power Integrations, Inc. Method and apparatus for a control circuit with multiple operation modes
US7502236B2 (en) 2006-10-04 2009-03-10 Power Integrations, Inc. Power supply controller responsive to a feedforward signal
US7576528B2 (en) 2006-10-04 2009-08-18 Power Integrations, Inc. Control circuit responsive to an impedance
KR101039384B1 (ko) * 2009-05-28 2011-06-08 한국기초과학지원연구원 스핀소자를 이용한 이완발진기
KR20120069377A (ko) * 2010-12-20 2012-06-28 에스케이하이닉스 주식회사 반도체 장치의 발진 회로
US9385694B2 (en) * 2011-12-20 2016-07-05 Conexant Systems, Inc. Low-power programmable oscillator and ramp generator
CN103095103B (zh) * 2013-01-16 2015-06-03 绍兴光大芯业微电子有限公司 开关电源中随负载变化实现曲率降频的频率调整控制电路
CN105471226B (zh) * 2015-12-31 2018-05-22 成都芯源系统有限公司 开关电源及用于其中的控制器和振荡器
DE102018204959A1 (de) * 2018-04-03 2019-10-10 Tridonic Gmbh & Co Kg Vorrichtungen und Verfahren zum Bereitstellen eines hochaufgelösten PWM-Signals
US11942900B2 (en) 2021-10-14 2024-03-26 Power Integrations, Inc. Signal compensation with summed error signals
KR20240059436A (ko) * 2022-10-27 2024-05-07 삼성전자주식회사 전압 컨버터 및 이를 포함하는 전원 공급 장치

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56169639U (https=) * 1980-05-20 1981-12-15
JPH0528116U (ja) * 1991-09-24 1993-04-09 横河電機株式会社 演算増幅器
JPH0685625A (ja) * 1992-09-03 1994-03-25 Hitachi Ltd 発振器
JPH06204808A (ja) * 1992-10-07 1994-07-22 Samsung Electron Co Ltd 発振器
JPH0685525U (ja) * 1993-05-12 1994-12-06 ティアック株式会社 発振回路
JP2001168655A (ja) * 1999-12-08 2001-06-22 Nec Corp 入力リーク電流補償回路及びその補償方法

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JPS50156348A (https=) 1974-06-04 1975-12-17
JPS58200610A (ja) 1982-05-18 1983-11-22 Sony Corp 高入力インピーダンス回路
US4598259A (en) 1984-12-05 1986-07-01 Sprague Electric Company Stable frequency sawtooth oscillator
IT1189575B (it) 1986-06-18 1988-02-04 Sgs Microelettronica Spa Circuito di recupero della corrente di polarizzazione,in particolare per generatori di rampa
US5045800A (en) 1990-03-23 1991-09-03 Power Integrations, Inc. Pulse width modulator control circuit
JP2836762B2 (ja) 1990-09-19 1998-12-14 オリンパス光学工業株式会社 絞り装置
WO1992007425A1 (fr) * 1990-10-23 1992-04-30 Seiko Epson Corporation Circuit oscillant commande en tension et boucle a verrouillage de phase
NL9201053A (nl) * 1992-06-15 1994-01-03 Koninkl Philips Electronics Nv Switched capacitor ladingspomp, alsmede zaagtandoscillator voorzien van een dergelijke switched capacitor ladingspomp.
US5455493A (en) 1993-10-04 1995-10-03 Zenith Electronics Corporation Multisync horizontal drive generator
US5444422A (en) * 1994-09-20 1995-08-22 Zenith Electronics Corp. Low phase noise high frequency integrated oscillator with minimum pins
US5644270A (en) * 1996-03-15 1997-07-01 Ics Technologies, Inc. Enchanced stability voltage controlled RC oscillator
JP3625572B2 (ja) * 1996-05-21 2005-03-02 富士通株式会社 発振回路及びそれを利用したｐｌｌ回路
EP1001535B1 (en) * 1998-11-10 2005-01-26 STMicroelectronics S.r.l. Circuit for controlling the slew rate of the output voltage of a driver in push-pull configuration
US6339349B1 (en) 2000-02-02 2002-01-15 National Semiconductor Corporation Method and circuit for comparator-less generation of ramped voltage having controlled maximum amplitude
US6614313B2 (en) * 2000-10-06 2003-09-02 Linear Technology Corporation Precision oscillator circuits and methods with switched capacitor frequency control and frequency-setting resistor
JP3839737B2 (ja) * 2002-03-01 2006-11-01 株式会社小糸製作所 直流電圧変換回路
US7034625B2 (en) 2003-11-19 2006-04-25 Power Integrations, Inc. Method and apparatus to improve frequency stability of an integrated circuit oscillator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56169639U (https=) * 1980-05-20 1981-12-15
JPH0528116U (ja) * 1991-09-24 1993-04-09 横河電機株式会社 演算増幅器
JPH0685625A (ja) * 1992-09-03 1994-03-25 Hitachi Ltd 発振器
JPH06204808A (ja) * 1992-10-07 1994-07-22 Samsung Electron Co Ltd 発振器
JPH0685525U (ja) * 1993-05-12 1994-12-06 ティアック株式会社 発振回路
JP2001168655A (ja) * 1999-12-08 2001-06-22 Nec Corp 入力リーク電流補償回路及びその補償方法

Also Published As

Publication number Publication date
DE602004018090D1 (de) 2009-01-15
US7492229B2 (en) 2009-02-17
US20060139111A1 (en) 2006-06-29
US7034625B2 (en) 2006-04-25
EP1533902A1 (en) 2005-05-25
EP1533902B1 (en) 2008-12-03
US20080042763A1 (en) 2008-02-21
US7304547B2 (en) 2007-12-04
EP2043265A1 (en) 2009-04-01
US20050104672A1 (en) 2005-05-19

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